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stack_using_array.cpp
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stack_using_array.cpp
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#include<iostream>
using namespace std;
int stack[100001];
int top=0;
void push(int x)
{
if(top==100001)
{
cout<<"\nOverflow";
}
else
{
stack[top++]=x;
}
}
void pop()
{
if (top==0)
{
cout<<"\nUnderflow";
}
else
{
cout<<"\n"<<stack[--top]<<" deleted";
}
}
void show()
{
for (int i = 0; i < top; i++)
{
cout<<stack[i]<<"\n";
}
}
void topmost()
{
cout << "\nTopmost element: "<<stack[top-1];
}
int main()
{
int ch, x;
do
{
cout<<"\n1. Push";
cout<<"\n2. Pop";
cout<<"\n3. Print";
cout<<"\n4. Print topmost element:";
cout<<"\n5. Quit:";
cout<<"\nEnter Your Choice : ";
cin>>ch;
if (ch==1)
{
cout<<"\nInsert : ";
cin>>x;
push(x);
}
else if (ch==2)
{
pop();
}
else if (ch==3)
{
show();
}
else if(ch==4)
{
topmost();
}
else if(ch==5)
{
break;
}
}while(ch!=0);
return 0;
}